Tiger Woods tees off on the third hole during the second round of the Tour Championship at East Lake Golf Club. / Brett Davis USA TODAY Sports

by Steve DiMeglio, USA TODAY Sports

by Steve DiMeglio, USA TODAY Sports

ATLANTA â?? Tiger Woods ran out of gas at the end of his second round Friday in The Tour Championship by Coca-Cola.

Now he may be running out of time to win the FedExCup.

The world's No. 1, who didn't make a birdie in Thursday's first round for only the seventh time in 1,083 rounds as a professional, moved himself into contention with five birdies in his first 13 holes in the second round as the surge got him within four shots of the lead.

Twenty minutes later he was seven back. At the end of his round, he was 13 behind pace-setting Henrik Stenson. Woods began running into trouble on the 14th hole where he pulled his tee shot and then watched it carom off a tree even farther left.

From there he made double-bogey 6. Another bogey on 16 sent him further back and a triple-bogey 7 on the 17th, where he hit his tee shot into the water, hit a poor approach and a poor chip, sent him into a tie for last place in the 30-man field at the season-ending tournament.

"I put everything I had into that start and didn't have much at the end," Woods said after his round of 1-over-par 71 left him 4 over for the tournament.

"Just ran out of gas.

" â?¦ I'm tired."

Woods was the No. 1 seed in the FedExCup Playoffs standings heading into The Tour Championship. Woods, Stenson, Adam Scott, Zach Johnson and Matt Kuchar would automatically win the FedExCup â?? and the $10 million grand prize â?? if they were to win this week. Stenson is leading and Scott and Johnson are in contention.

Woods said he's not out of winning The Tour Championship, either.

"I'm still in contention. There's 36 holes. That's why we play. That's why we play four rounds," Woods said. "This is not a sprint. It's tournament golf. It's four rounds. It's a marathon. You've got to keep plugging around."

What Woods needs is to marry his ball-striking from Thursday and his putting from, Friday.

"I hit it better (Thursday), and I made obviously nothing," putting, he said. "Today didn't hit it quite as good, even through the stretch where I was 5 under. So even through that stretch, I didn't hit it as good as I did yesterday, but I made putts. That's the name of the game. You've got to make putts."

Whatever happens this weekend, Woods is looking forward to next week when the PGA Tour goes on hiatus for one week before the Presidents Cup. Woods is playing his seventh tournament in 10 weeks.

"It's been just a long, long grind," said Woods, who played with Jason Dufner. "Duff and I were talking about it. We're all looking forward to (next) week off. Everyone out here has got some knick-knack injuries, and guys are taped up and banged up a little bit. The American guys and the international guys are looking forward to that week off. Some of the European guys, they've got their Race to Dubai they've got to get ready for, as well."